exercise/track_exercises.php中:
foreach( $exo_users_details as $exo_users_detail )
{
if ( $exo_users_detail['attempts'] == 0 )
{
continue; //添加本行。
$exo_users_detail['minimum'] = '-';
$exo_users_detail['maximum'] = '-';
$displayedAverage = '-';
$displayedAvgTime = '-';
}
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